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NEET Chemistry Electrochemistry / विद्युत् रसायन Question Bank Self Evaluation Test - Electrochemistry

  • question_answer
    The Zn acts as sacrificial or cathodic protection to prevent rusting of iron because:

    A) \[{{E}^{{}^\circ }}_{OP}\,\text{of }Zn<{{E}^{{}^\circ }}_{OP}\text{of}\,Fe\]

    B) \[{{E}^{{}^\circ }}_{OP}\,\text{of}\,Zn>{{E}^{{}^\circ }}_{OP}\,\text{of}\,Fe\]

    C) \[{{E}^{{}^\circ }}_{OP}\text{of}\,Zn={{E}^{{}^\circ }}_{OP}\,\text{of}\,Fe\]

    D) Zn is cheaper than iron

    Correct Answer: B

    Solution :

    [b] \[E_{OP}^{{}^\circ }\text{ }of\text{ }Zn>E_{OP}^{{}^\circ }\,of\text{ }Fe.\]


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